Biogas is one of the most promising renewable sources of energy. However, it is also a gas mixture containing acidic gases, such as H₂S, useless for energetic purposes, environmentally harmful and damaging for energy conversion devices. This review focuses on nanoporous materials as adsorbents of H₂S for biogas purification processes. Cation-exchanged zeolites and impregnated activated carbons have been thoroughly studied since many years for this application, providing good results, in particular for what concerns activated carbons, despite having a limited regenerability. Amino-functionalized ordered mesoporous silicas produced very interesting results, both in terms of adsorption performances and regeneration capacity, but they are largely untested in large-scale “real-life” applications, and deserve further investigations, in particular for H₂S and CO₂ discrimination. On the contrary, despite reporting very good results, there are only few papers dealing with H₂S adsorption on nanoporous metal organic frameworks.

沼气是最有前途的可再生能源之一。但是，它也是一种含有酸性气体（例如H ₂ S）的气体混合物，对于能量目的没有用，对环境有害并且对能量转换装置有害。这篇综述集中于作为H ₂吸附剂的纳米多孔材料S用于沼气净化工艺。阳离子交换的沸石和浸渍的活性炭已为此应用进行了多年研究，尽管可再生性有限，但仍能提供良好的结果，特别是涉及活性炭的结果。氨基官能化的有序介孔二氧化硅在吸附性能和再生能力方面均产生了非常有趣的结果，但它们在大规模“实际”应用中尚未经过测试，因此值得进一步研究，特别是对于H ₂ S和CO ₂歧视。相反，尽管报道了非常好的结果，但是关于纳米多孔金属有机骨架上H ₂ S吸附的论文很少。